How to use the examples
=======================

1. Ordinary timeline
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The data files list the lives of popes and presidents of the USA in popes1.tab and pres1.tab. In
the other files (popes2.tar and pres2.tab) we have a list when they were in office. The additional
file events.tab lists a few point event from more recent history.

To generate some charts run it

$ ./timeline popes2.tab pres2.tab events.tab

The will create charts showing when the various popes and presidents were in office, plus a few 
other events.

* test_timeline_01.png - All the data in a very wide chart!
* test_timeline_02.png - Only the data started AND ended within 1950/01/01 to 1999/12/31
* test_timeline_03.png - The same as 02 but including events that started after 1950/01/01
                         but ended after 1999/12/31
* test_timeline_04.png - The same as 3 but including events that started before 1950/01/01
* test_timeline_05.png - All the data that happened in whole or part between 1950/01/01 and
                         1999/12/31

2. Diagonal Timeline
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$ ./diagonal diagonal.dat

* test_diagonal1.png - Lists all the events in the source file
* test_diagonal2.png - List only those events that start or end between 2007/04/21T03:08:18 and 
                       2007/04/21T04:00:00